Sources say the Kardashian klan are deeply worried about overweight Rob, desperately fearing for his health.

Fears have grown for Rob (Image: Broadimage/REX/Shutterstock)

It was thought the 28-year-old would shake up his lifestyle after being admitted to hospital and being diagnosed with type 2 diabetes. According to TMZ ex sock designer Rob's condition is so serious he has to inject himself with insulin once a day.